Saitoh Kazuhiko, Suzuki Hideo, Hiruta Akiko, Igarashi Takashi, Fukuda Hirokazu, Hirabayashi Yoshihiro, Seo Norimasa, Ichimura Keiichi
Department of Anesthesiology and Intensive Care Medicine, Jichi Medical School, Tochigi 329-0498.
Masui. 2002 Oct;51(10):1100-3.
The purpose of the present investigation is to examine whether induced hypotension can improve the dryness of the surgical field in endoscopic sinus surgery (ESS). ASA physical status I and II adult patients with chronic sinutitis undergoing ESS were studied. All patients were not premedicated. Anesthesia was induced with propofol and maintained with sevoflurane and fentanyl. The patients were allocated randomly into two groups. In patients of Group C, mean arterial blood pressure (MAP) was maintained around 80 mmHg. In Group H, sodium nitroprusside was infused to maintain controlled hypotension with MAP around 60 mmHg. Blood loss, dryness of the surgical field, volume of fluid infusion and urine output, and surgical as well as anesthetic time were compared. Blood loss and dryness of the surgical field were significantly different between the groups. Volume of infused fluid, urine output, and surgical as well as anesthetic time were not significantly different. Induced hypotension with sodium nitroprusside improved surgical conditions and decreased blood loss in ESS.
本研究的目的是探讨诱导性低血压是否能改善鼻内镜鼻窦手术（ESS）中手术视野的干燥程度。对接受ESS的ASA身体状况为I级和II级的慢性鼻窦炎成年患者进行了研究。所有患者均未进行术前用药。采用丙泊酚诱导麻醉，七氟醚和芬太尼维持麻醉。患者被随机分为两组。C组患者的平均动脉血压（MAP）维持在80 mmHg左右。H组输注硝普钠以维持控制性低血压，MAP在60 mmHg左右。比较两组的失血量、手术视野干燥程度、输液量和尿量以及手术和麻醉时间。两组间失血量和手术视野干燥程度有显著差异。输液量、尿量以及手术和麻醉时间无显著差异。硝普钠诱导的低血压改善了ESS的手术条件并减少了失血量。
